Arduino PWM Output Filter Circuit

There have been a number of occasions now where I've added a low-pass filter and voltage divider to my Arduino-based PWM outputs so I thought it was worth pulling that together into a single post to make it easy to refer to elsewhere. This is that post. There is nothing new here, it is just … Continue reading Arduino PWM Output Filter Circuit →

Arduino MPR121 MIDI Touch Piano

A comment on the Arduino MPR121 Touch Piano pointed out that I never went as far as building a 48-note MIDI touch piano. In principle all the bits are there between that post and the Arduino MIDI Touch Piano so this post brings the two together to do just that. https://youtu.be/fdxiHUlXFbY These are the key Arduino … Continue reading Arduino MPR121 MIDI Touch Piano →

Lo-Fi Orchestra – Uranus from The Planets

Inspired by the legendary Tomita, the Lo-Fi Orchestra presents Uranus from Gustav Holst's Planets Suite. This is using the same Lo-Fi Orchestra setup as Jupiter, which is detailed in full here, but you can listen out for the MT32-Pi on timpani once again, the Adafruit feather on xylophone, and heavy use of the PWM and … Continue reading Lo-Fi Orchestra – Uranus from The Planets →

Lo-Fi Orchestra – Dance of the Knights

The Lo-Fi Orchestra presents the Dance of the Knights (also known as "Montagues and Capulets") from Prokofiev's ballet Romeo and Juliet. Some of this was taken from the MIDI file sequenced by George Pollen. https://youtu.be/BvLWuo4fulY All music rights and copyright with original authors, composers, producers, artists, and so on. Kevin

Lo-Fi Orchestra – Thunderbirds

The Lo-Fi Orchestra presents Barry Gray's march used as the main theme for Gerry and Sylvia Anderson's Thunderbirds. The opening features my Raspberry Pi, Clumsy MIDI and MT32-Pi on timpani and borrows heavily from a MIDI file that I've not been able to find any credits for I'm afraid. https://youtu.be/53PtHxF9Q1Y All music rights and copyright … Continue reading Lo-Fi Orchestra – Thunderbirds →

Pico MIDI Keypad Mini Tenori-On

I'd love to have a proper Tenori-on. It is a pretty unique kind of electronic instrument with a 16x16 grid of buttons that allows you to draw patterns that are then played in sequence. But as that is very unlikely to ever happen, I have to be content with making my own! Here is a … Continue reading Pico MIDI Keypad Mini Tenori-On →

Toy Keyboard USB Matrix Decode with the Pi Pico – Part 2

Having added USB MIDI to my "Toy Keyboard" - I wanted the option to choose either USB or serial MIDI as the output. This returns to the Toy Keyboard USB Matrix Decode with the Pi Pico project to add a serial port option. Warning! I strongly recommend using old or second hand equipment for your experiments. … Continue reading Toy Keyboard USB Matrix Decode with the Pi Pico – Part 2 →

Arduino Mozzi Sample Drum Sequencer

This project combines the Arduino Mozzi Sample Drum Machine with the code from the Arduino VS1003 Drum Machine and the buttons from the Analog Keypad Tone Controller. https://youtu.be/e_hVGe0Z_mE Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible for any damage to expensive instruments! These are the key Arduino tutorials … Continue reading Arduino Mozzi Sample Drum Sequencer →

Arduino Mozzi Sample Drum Machine

There is still a lot to explore with the Mozzi synthesis library, so today I wanted to look at the "sample" options - getting the library to play pre-recording samples of sounds. https://youtu.be/eB7vzF_4zxY Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible for any damage to expensive … Continue reading Arduino Mozzi Sample Drum Machine →

Lo-Fi Orchestra – Baba Yaga, Great Gate of Kiev

The Lo-Fi Orchestra presents the final two movements from Mussorgsky's Pictures at an Exhibition: Baba Yaga - "The Hut on Fowls Legs" - and The Great Gate of Kiev. I used the first few bars from the opening Promenade in my introduction to the Lo-Fi Orchestra, highlighting the brass section provided by the Arduino Multi MIDI … Continue reading Lo-Fi Orchestra – Baba Yaga, Great Gate of Kiev →